G35 Sedan 03' - 06' Motordyne Mrev2 Lower Collector Genuine Motordyne Engineering product 'Minimum' 15+ HP / 18+ TQ in the upper to midrange powerband One of the most powerful N/A bolt on you can put on your G35's engine Can realize 20+ HP in combination with a Motordyne ISO Thermal Spacer Kit comes complete with all necessary parts and detailed installation instrustions